Ryobi RY10532 - Manual (Page 31)

31
CLEAN FLYWHEEL
FINS
Fig. 68
FUEL FILTER
Fig. 69
Fig. 70
LOOSEN
TIGHTEN
MAINTENANCE
CHECKING THE FUEL FILTER
See Figure 69.
Check the fuel filter periodically. Replace it if contaminated
or damaged.
REPLACING THE SPARK PLUG
See Figure 70.
This engine uses a Champion RZ7C or NGK CMR7H spark
plug with .025 in. (0,64 mm) electrode gap. Use an exact
replacement and replace every 50 hours or more frequently,
if necessary.

Loosen the spark plug by turning it counterclockwise with
a wrench.
 Remove the spark plug.
 Hand thread the new spark plug, turning it clockwise.
Tighten securely with wrench.
NOTE: Be careful not to cross-thread the spark plug.
Cross-threading will seriously damage the cylinder.
INSPECTING/CLEANING THE SPARK
ARRESTOR SCREEN AND MUFFLER
EXHAUST PORT
See Figure 71.
The muffler is equipped with a spark arrestor screen. A faulty
spark arrestor screen can create a fire hazard. Through normal
use the screen can become dirty and should be inspected
weekly and cleaned as required. Always keep the muffler
and spark arrestor on the saw in good condition.
WARNING
Muffler surfaces are very hot during and after operation
of the chain saw. To avoid serious personal injury, keep
all body parts away from the muffler.
 Allow the muffler to cool.
 Remove torx screw and 5/16 in. nuts holding the muffler
cover in place; remove muffler cover and spark screen.
 If dirty, clean the spark arrestor screen with a small wire
brush. Replace the screen if it is cracked or otherwise
deteriorated.
 Remove the muffler.
 Insert a flat blade screwdriver into the muffler exhaust
vent to remove any carbon deposits.
 Wipe away any carbon buildup on the muffler exhaust
vent and the cylinder exhaust port at the same time.
 Reinstall muffler, spark screen, and muffler cover.
 Reinstall torx screw and nuts to secure.
MUFFLER
SPARK
ARRESTOR
SCREEN
Fig. 71
PLATE
NUTS
SCREW